The main problem with them seems to be their size and material. The info given on the pre-production schematics for each of the characters shows them to be about 23cm tall (making the NECA toy figures of 9 and 1 accurate sizes). This small size makes it VERY hard to work with the correct burlap material (especially turning it inside out once sewn - the edges all tend to fray/seperate). I have a 9 started in a very-similar-looking-to-burlap-but-without-the-structural-problems material, but haven't finished him.
OK, so here's the dolls that I had a group of Primary 5-7 pupils make over a period of 6 1-hour Art classes. Remember that these were INSPIRED by the 9 movie (they're not meant to be exact replicas) and I was working with a budget of about £10 for materials (polystyrene balls for heads, garden wire for internal armatures, miniature wooden pegs for fingers, wooden pegs for feet). Plus the kids chose the materials for the body that they wanted (some of which didn't exactly match the tone of the film).
Everything on these was done by each of the pupils, including sewing them by hand, making wire internal armatures/skeletons, and customisation. I tried to steer them away from the googly eyes, but they were having none of it! :angry:lol
The hands were a bit of a disaster (they didn't get the air-dry clay wet enough when working with it and they crumbled on almost all of them), but everything else turned out relatively well.